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HomeProduct name listNEOPENTYL GLYCOL MONO(HYDROXYPIVALATE)

NEOPENTYL GLYCOL MONO(HYDROXYPIVALATE)

  • CAS NO.:1115-20-4
  • Empirical Formula: C10H20O4
  • Molecular Weight: 204.26
  • MDL number: MFCD00059597
  • EINECS: 214-222-2
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-07-14 20:44:35
NEOPENTYL GLYCOL MONO(HYDROXYPIVALATE) Structural

What is NEOPENTYL GLYCOL MONO(HYDROXYPIVALATE)?

Description

Neopentyl Glycol Mono(hydroxypivalate) is also known as Hydroxypivalic acid neopentyl glycol ester (HPN). The compound has properties similar to neopentyl glycol but in addition specific characteristics that are responsible for its increasing use. Manufacturers are Eastman Chemical, BASF, and Mitsubishi Gas. World capacity is estimated at 2000 – 2500 t/a. It is highly soluble in polar organic solvents. Both hydroxyl groups undergo the usual reactions of primary alcohols. As with neopentyl glycol, the quaternary structure contributes to the excellent stability of HPN derivatives.

The Uses of NEOPENTYL GLYCOL MONO(HYDROXYPIVALATE)

Neopentyl Glycol Mono(hydroxypivalate) is used as a diol modifier in polyesters for powder, coil, and automotive coatings. HPN imparts the polyesters excellent weatherability, flexibility and resin solubility as well as lower melt viscosity and glass transition temperature. In powder coatings hydroxypivalic acid neopentyl glycol ester improves the appearance by increasing the flow and leveling, because it gives less cyclic compounds than neopentyl glycol during the polyester synthesis. Because of their improved flexibility polyesters containing HPN are used in automotive coatings to give enhanced stone chip resistance and in coil coatings with high demand on both flexibility and weather resistance. Acrylated hydroxypivalic acid neopentyl glycol ester is used in UV-curable coatings for inks and wood coating.

Preparation

Neopentyl Glycol Mono(hydroxypivalate) is produced by a Tishchenko reaction directly from hydroxypivaldehyde in the presence of a basic catalyst (e.g., aluminum oxide) or classically by thermal treatment. Alternatively, it can be synthesized by esterification of neopentyl glycol with hydroxypivalic acid. High-purity hydroxypivalic acid neopentyl glycol ester is obtained by subsequent distillation.

Flammability and Explosibility

Not classified

Properties of NEOPENTYL GLYCOL MONO(HYDROXYPIVALATE)

Melting point: 46-50°C
Boiling point: 292°C
Density  1.01
Flash point: 292°C
solubility  Soluble in methanol(almost transparency).
form  powder to crystal
pka 14.15±0.10(Predicted)
color  White to Almost white
Water Solubility  239g/L at 25℃
Sensitive  Hygroscopic
CAS DataBase Reference 1115-20-4(CAS DataBase Reference)
EPA Substance Registry System Neopental glycol monohydroxypivalate (1115-20-4)

Safety information for NEOPENTYL GLYCOL MONO(HYDROXYPIVALATE)

Signal word Danger
Pictogram(s)
ghs
Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H319:Serious eye damage/eye irritation
Precautionary Statement Codes P264:Wash hands thoroughly after handling.
P264:Wash skin thouroughly after handling.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P337+P313:IF eye irritation persists: Get medical advice/attention.

Computed Descriptors for NEOPENTYL GLYCOL MONO(HYDROXYPIVALATE)

InChIKey SZCWBURCISJFEZ-UHFFFAOYSA-N

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